Yu, Chunyan
Lou, Chaohua
Lian, Qiguo
Tu, Xiaowen
Zhang, Jiashuai
Zuo, Xiayun
Funding for this research was provided by:
Innovation-oriented Science and Technology Grant from NHC Key Laboratory of Reproduction Regulation (CX2017-05)
Article History
Received: 23 February 2021
Accepted: 2 September 2021
First Online: 20 September 2021
Declarations
:
: This study received approval from the Medical Ethical Committee of Shanghai Institute for Biomedical and Pharmaceutical Technologies (Formerly named Shanghai Institute of Planned Parenthood Research, No. PJ2017-27). Both parental consent and youth assent were collected before data collection.
: Consent for publication was obtained from each participant and his/her parent during the informed consent process.
: The authors declare that they have no competing interests.